What is the thin skull rule also referred to as?

The thin skull rule is commonly referred to as the eggshell-skull rule. This legal principle holds that a defendant is liable for the full extent of a plaintiff's injuries, even if those injuries are more severe than what could have been expected due to the plaintiff's preexisting vulnerabilities or conditions. The name "eggshell skull" illustrates that a person with a fragile constitution should not be treated differently than someone without such vulnerability; if a tortious act causes injury, the defendant must bear the consequences regardless of the pre-existing conditions of the injured party. This rule reinforces the concept that defendants must take their victims as they find them, emphasizing the importance of liability in tort law.

The other terms listed do not accurately describe this specific legal concept. The foreseeability doctrine relates to whether the harm was predictable under the circumstances. The hardship doctrine typically addresses issues related to fairness in enforcing contract terms. The extraordinary impact rule is not a recognized term in tort law and does not pertain to the liability connected to unexpectedly severe injuries sustained by a vulnerable party.